Analysis
Nichia files Patent Infringement Lawsuit against White LED Products of EVERLIGHT ELECTRONICS Co., Ltd. of Taiwan
On Aug. 31, 2011, Nichia Corporation has filed a patent infringement lawsuit in Tokyo District Court to enjoin Chip One Stop, Inc. from infringing Nichia's patent (No. 4530094, or patent No. 094) with regard to white LED products (product number: GT 3528 series) manufactured by EVERLIGHT ELECTRONICS Co., Ltd.
NichNote: Outline of the asserted patent:
Typical white LEDs presently found in the market achieves white colored radiation by combining LED chips emitting blue light with phosphors emitting light of yellow and other various colors.
The asserted patent in this lawsuit (patent No. 094) is a patent on technology regarding the density of the phosphor inside such white LED, and is not limited to white LEDs using a certain type of phosphor.